Method maybeFIMethod

src/jvm/clojure/lang/Compiler.java:1660–1673

(Class target)

	// 1) Target is a functional interface and not already implemented by AFn
	// 2) Target method matches one of our fn invoker methods (0 <= arity <= 10)
	static java.lang.reflect.Method maybeFIMethod(Class target) {
		if (target != null && target.isAnnotationPresent(FunctionalInterface.class)
				&& !AFN_FIS.contains(target)) {

			java.lang.reflect.Method[] methods = target.getMethods();
            for (java.lang.reflect.Method method : methods) {
				if (method.getParameterCount() >= 0 && method.getParameterCount() <= 10
						&& Modifier.isAbstract(method.getModifiers())
						&& !OBJECT_METHODS.contains(method.getName()))
					return method;
			}
		}
		return null;
	}

	// Invokers support only long, double, Object params; widen numerics
	private static Class toInvokerParamType(Class c) {